## General

 Goal: Combine the values and operators shown to determine just how MathFit you are. Values: At the beginning of each turn, each of the four value boxes are randomly populated with a value from -9 to 9. Operators: At the beginning of each turn, each of the four operator boxes are randomly populated with one of the following operators based on the selected difficulty. Addition (+) Subtraction (-) Multiplication (*) Division (÷) Exponents (^) Roots (√) Moves: On each move the result from the values and operators you combine will be added to or subtracted from your score. Hints: The hint button (?) will help you decide what values and operators to combine. Challenges: Periodically you will be given the option to take on challenges and with them the risks and rewards they offer.

Available on Easy, Normal and Hard.

-7 → + → 3 is calculated as -7 + 3 = -4

-7
+
3

-7 ← + ← 3 is calculated as 3 + -7 = -4

## Subtraction (-)

Available on Easy, Normal and Hard.

-8 → - → 2 is calculated as -8 - 2 = -10

-8
-
2

-8 ← - ← 2 is calculated as 2 - -8 = 10

## Multiplication (*)

Available on Normal and Hard.

6 → * → 5 is calculated as 6 * 5 = 30

6
*
5

6 ← * ← 5 is calculated as 5 * 6 = 30

## Division (÷)

Available on Normal and Hard.

1 → ÷ → -4 is calculated as 1 ÷ -4 = -0.25

1
÷
-4

1 ← ÷ ← -4 is calculated as -4 ÷ 1 = -4

## Exponents (^)

Available on Hard.

-3 → ^ → 8 is calculated as -3^8 = 6,561

-3
^
8

-3 ← ^ ← 8 is calculated as 8^-3 = 0.002

## Roots (√)

Available on Hard.

9 → √ → 2 is calculated as 9^(1/2) = 3

9
2

9 ← √ ← 2 is calculated as 2^(1/9) = 1.08

## Errors

 NaN: Not a number (nan) will be displayed if the selected values and operator cannot be calculated. Example: -4^(1/5) = nan ±Inf: Infinity (±inf) will be displayed if the selected values and operator result in a unimaginable value. Example: -3 ÷ 0 = -inf Game over: Some calculators will show "Error" instead of (nan) or (±inf). Regardless of the error message, these errors mean game over.